./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c899d9f75a53a80fe85551911016ababc48d03a22c1656000243377f27dbc4c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:41:34,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:41:34,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:41:34,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:41:34,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:41:34,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:41:34,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:41:34,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:41:34,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:41:34,380 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:41:34,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:41:34,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:41:34,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:41:34,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:41:34,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:41:34,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:41:34,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:41:34,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:41:34,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:41:34,401 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:41:34,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:41:34,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:41:34,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:41:34,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:41:34,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:41:34,431 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:41:34,432 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:41:34,433 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:41:34,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:41:34,437 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:41:34,439 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:41:34,440 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:41:34,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:41:34,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:41:34,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:41:34,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:41:34,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:41:34,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:41:34,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:41:34,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:41:34,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:41:34,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/config/svcomp-Overflow-64bit-Taipan_Default.epf [2021-11-19 13:41:34,511 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:41:34,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:41:34,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:41:34,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:41:34,515 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:41:34,516 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:41:34,516 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:41:34,516 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:41:34,516 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:41:34,517 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:41:34,529 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:41:34,530 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:41:34,530 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:41:34,530 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:41:34,530 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:41:34,531 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:41:34,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:41:34,532 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-19 13:41:34,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:41:34,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:41:34,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:41:34,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:41:34,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:41:34,534 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-19 13:41:34,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:41:34,535 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:41:34,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:41:34,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:41:34,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:41:34,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:41:34,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:41:34,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:41:34,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:41:34,537 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:41:34,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:41:34,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:41:34,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:41:34,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:41:34,539 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c899d9f75a53a80fe85551911016ababc48d03a22c1656000243377f27dbc4c0 [2021-11-19 13:41:34,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:41:34,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:41:34,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:41:34,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:41:34,936 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:41:34,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/busybox-1.22.0/basename-2.i [2021-11-19 13:41:35,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/data/55e1c297e/327ad46453874f4aabd2e5df35f2734c/FLAG5c746f1a6 [2021-11-19 13:41:35,735 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:41:35,738 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/sv-benchmarks/c/busybox-1.22.0/basename-2.i [2021-11-19 13:41:35,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/data/55e1c297e/327ad46453874f4aabd2e5df35f2734c/FLAG5c746f1a6 [2021-11-19 13:41:35,937 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/data/55e1c297e/327ad46453874f4aabd2e5df35f2734c [2021-11-19 13:41:35,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:41:35,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:41:35,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:41:35,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:41:35,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:41:35,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:41:35" (1/1) ... [2021-11-19 13:41:35,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba5fd94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:35, skipping insertion in model container [2021-11-19 13:41:35,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:41:35" (1/1) ... [2021-11-19 13:41:35,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:41:36,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:41:36,810 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2021-11-19 13:41:36,857 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:41:36,871 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:41:36,976 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2021-11-19 13:41:37,005 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:41:37,121 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:41:37,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:37 WrapperNode [2021-11-19 13:41:37,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:41:37,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:41:37,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:41:37,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:41:37,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:37" (1/1) ... [2021-11-19 13:41:37,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:37" (1/1) ... [2021-11-19 13:41:37,282 INFO L137 Inliner]: procedures = 348, calls = 114, calls flagged for inlining = 10, calls inlined = 9, statements flattened = 388 [2021-11-19 13:41:37,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:41:37,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:41:37,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:41:37,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:41:37,293 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:37" (1/1) ... [2021-11-19 13:41:37,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:37" (1/1) ... [2021-11-19 13:41:37,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:37" (1/1) ... [2021-11-19 13:41:37,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:37" (1/1) ... [2021-11-19 13:41:37,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:37" (1/1) ... [2021-11-19 13:41:37,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:37" (1/1) ... [2021-11-19 13:41:37,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:37" (1/1) ... [2021-11-19 13:41:37,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:41:37,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:41:37,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:41:37,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:41:37,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:37" (1/1) ... [2021-11-19 13:41:37,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:41:37,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:41:37,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:41:37,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:41:37,437 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 13:41:37,437 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 13:41:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:41:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:41:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:41:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 13:41:37,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 13:41:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:41:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-19 13:41:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:41:37,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:41:37,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 13:41:37,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:41:37,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:41:37,776 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:41:37,777 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:41:38,155 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:41:38,267 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:41:38,268 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-19 13:41:38,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:41:38 BoogieIcfgContainer [2021-11-19 13:41:38,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:41:38,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:41:38,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:41:38,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:41:38,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:41:35" (1/3) ... [2021-11-19 13:41:38,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5026292f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:41:38, skipping insertion in model container [2021-11-19 13:41:38,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:41:37" (2/3) ... [2021-11-19 13:41:38,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5026292f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:41:38, skipping insertion in model container [2021-11-19 13:41:38,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:41:38" (3/3) ... [2021-11-19 13:41:38,280 INFO L111 eAbstractionObserver]: Analyzing ICFG basename-2.i [2021-11-19 13:41:38,287 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:41:38,287 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2021-11-19 13:41:38,328 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:41:38,334 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:41:38,334 INFO L340 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2021-11-19 13:41:38,353 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 58 states have (on average 1.8103448275862069) internal successors, (105), 82 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 13:41:38,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-19 13:41:38,358 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:38,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-19 13:41:38,359 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-11-19 13:41:38,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:38,364 INFO L85 PathProgramCache]: Analyzing trace with hash 375112, now seen corresponding path program 1 times [2021-11-19 13:41:38,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:41:38,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945863192] [2021-11-19 13:41:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:38,375 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:41:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:38,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:38,782 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:41:38,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945863192] [2021-11-19 13:41:38,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945863192] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:38,783 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:38,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-19 13:41:38,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106002161] [2021-11-19 13:41:38,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:38,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:41:38,803 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:41:38,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:41:38,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:41:38,837 INFO L87 Difference]: Start difference. First operand has 86 states, 58 states have (on average 1.8103448275862069) internal successors, (105), 82 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:38,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:38,944 INFO L93 Difference]: Finished difference Result 171 states and 217 transitions. [2021-11-19 13:41:38,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:41:38,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-19 13:41:38,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:38,955 INFO L225 Difference]: With dead ends: 171 [2021-11-19 13:41:38,956 INFO L226 Difference]: Without dead ends: 88 [2021-11-19 13:41:38,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:41:38,963 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 1 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:38,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 176 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:41:38,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-19 13:41:39,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-11-19 13:41:39,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 61 states have (on average 1.721311475409836) internal successors, (105), 84 states have internal predecessors, (105), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 13:41:39,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 109 transitions. [2021-11-19 13:41:39,014 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 109 transitions. Word has length 3 [2021-11-19 13:41:39,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:39,014 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 109 transitions. [2021-11-19 13:41:39,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:39,015 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 109 transitions. [2021-11-19 13:41:39,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-19 13:41:39,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:39,017 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2021-11-19 13:41:39,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 13:41:39,017 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-11-19 13:41:39,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:39,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1709895768, now seen corresponding path program 1 times [2021-11-19 13:41:39,019 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:41:39,019 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427744826] [2021-11-19 13:41:39,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:39,020 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:41:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:39,175 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 13:41:39,175 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:41:39,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427744826] [2021-11-19 13:41:39,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427744826] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:39,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:39,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 13:41:39,177 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691448853] [2021-11-19 13:41:39,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:39,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:41:39,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:41:39,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:41:39,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:41:39,180 INFO L87 Difference]: Start difference. First operand 88 states and 109 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:39,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:39,282 INFO L93 Difference]: Finished difference Result 88 states and 109 transitions. [2021-11-19 13:41:39,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:41:39,282 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-19 13:41:39,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:39,285 INFO L225 Difference]: With dead ends: 88 [2021-11-19 13:41:39,286 INFO L226 Difference]: Without dead ends: 87 [2021-11-19 13:41:39,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:41:39,290 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 2 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:39,291 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 174 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:41:39,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-11-19 13:41:39,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2021-11-19 13:41:39,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 61 states have (on average 1.7049180327868851) internal successors, (104), 83 states have internal predecessors, (104), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 13:41:39,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 108 transitions. [2021-11-19 13:41:39,304 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 108 transitions. Word has length 6 [2021-11-19 13:41:39,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:39,304 INFO L470 AbstractCegarLoop]: Abstraction has 87 states and 108 transitions. [2021-11-19 13:41:39,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:39,305 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 108 transitions. [2021-11-19 13:41:39,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 13:41:39,306 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:39,306 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2021-11-19 13:41:39,306 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 13:41:39,307 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-11-19 13:41:39,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:39,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1467161211, now seen corresponding path program 1 times [2021-11-19 13:41:39,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:41:39,308 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128897780] [2021-11-19 13:41:39,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:39,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:41:39,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:39,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:39,418 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:41:39,418 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128897780] [2021-11-19 13:41:39,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128897780] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:41:39,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437397464] [2021-11-19 13:41:39,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:39,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:39,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:41:39,421 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:41:39,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 13:41:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:39,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:41:39,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:39,665 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:39,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:39,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:39,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437397464] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:39,715 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:41:39,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [2] total 5 [2021-11-19 13:41:39,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630661079] [2021-11-19 13:41:39,715 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:39,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:41:39,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 13:41:39,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:41:39,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:41:39,719 INFO L87 Difference]: Start difference. First operand 87 states and 108 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:39,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:39,821 INFO L93 Difference]: Finished difference Result 87 states and 108 transitions. [2021-11-19 13:41:39,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:41:39,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-19 13:41:39,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:39,824 INFO L225 Difference]: With dead ends: 87 [2021-11-19 13:41:39,824 INFO L226 Difference]: Without dead ends: 86 [2021-11-19 13:41:39,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:41:39,826 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 95 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:39,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [97 Valid, 91 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:41:39,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-19 13:41:39,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2021-11-19 13:41:39,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 80 states have internal predecessors, (101), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 13:41:39,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 105 transitions. [2021-11-19 13:41:39,838 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 105 transitions. Word has length 7 [2021-11-19 13:41:39,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:39,839 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 105 transitions. [2021-11-19 13:41:39,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:39,840 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 105 transitions. [2021-11-19 13:41:39,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 13:41:39,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:39,840 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:39,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:40,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:40,066 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2021-11-19 13:41:40,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:40,066 INFO L85 PathProgramCache]: Analyzing trace with hash -831247020, now seen corresponding path program 1 times [2021-11-19 13:41:40,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 13:41:40,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266099342] [2021-11-19 13:41:40,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:40,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 13:41:40,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:40,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:40,226 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 13:41:40,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266099342] [2021-11-19 13:41:40,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266099342] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 13:41:40,229 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135316393] [2021-11-19 13:41:40,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:40,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:40,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:41:40,231 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:41:40,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 13:41:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:40,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:41:40,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:40,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:40,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:40,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:40,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135316393] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:40,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1125999589] [2021-11-19 13:41:40,547 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-19 13:41:40,548 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 13:41:40,552 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 13:41:40,557 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 13:41:40,558 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 13:41:40,670 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:40,679 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:41:40,681 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:40,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-11-19 13:41:40,686 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:41:40,688 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:40,691 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-11-19 13:41:40,692 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:41:40,692 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:40,693 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-19 13:41:40,695 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:41:40,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:40,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-11-19 13:41:40,697 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-19 13:41:40,698 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:40,698 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-11-19 13:41:40,708 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 433 [2021-11-19 13:41:40,740 INFO L446 ElimStorePlain]: Different costs {27=[|v_#length_18|], 75=[|v_#valid_36|]} [2021-11-19 13:41:40,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,902 INFO L244 Elim1Store]: Index analysis took 138 ms [2021-11-19 13:41:40,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 9 select indices, 9 select index equivalence classes, 72 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 88 [2021-11-19 13:41:40,916 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:40,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-19 13:41:40,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:40,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-19 13:41:40,928 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-19 13:41:40,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:41:40,978 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:40,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:40,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-19 13:41:41,116 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-11-19 13:41:41,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 105 [2021-11-19 13:41:41,145 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:41,155 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-19 13:41:41,157 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:41,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 66 [2021-11-19 13:41:41,158 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-19 13:41:41,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 13:41:41,192 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 13:41:41,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:41,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:41,410 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: incompatible size at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:210) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexBasedCostEstimation.computeCostEstimation(ArrayIndexBasedCostEstimation.java:166) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexBasedCostEstimation.(ArrayIndexBasedCostEstimation.java:63) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.computeCostEstimation(ElimStorePlain.java:573) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.doElimAllRec(ElimStorePlain.java:444) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.ElimStorePlain.startRecursiveElimination(ElimStorePlain.java:242) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:402) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:228) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-19 13:41:41,414 INFO L158 Benchmark]: Toolchain (without parser) took 5472.59ms. Allocated memory was 81.8MB in the beginning and 130.0MB in the end (delta: 48.2MB). Free memory was 57.2MB in the beginning and 84.3MB in the end (delta: -27.1MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. [2021-11-19 13:41:41,414 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 81.8MB. Free memory was 57.4MB in the beginning and 57.4MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:41:41,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1179.40ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 57.0MB in the beginning and 71.4MB in the end (delta: -14.4MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2021-11-19 13:41:41,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 160.15ms. Allocated memory is still 100.7MB. Free memory was 71.4MB in the beginning and 67.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 13:41:41,416 INFO L158 Benchmark]: Boogie Preprocessor took 74.42ms. Allocated memory is still 100.7MB. Free memory was 67.2MB in the beginning and 63.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 13:41:41,416 INFO L158 Benchmark]: RCFGBuilder took 912.49ms. Allocated memory is still 100.7MB. Free memory was 63.8MB in the beginning and 49.2MB in the end (delta: 14.6MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2021-11-19 13:41:41,417 INFO L158 Benchmark]: TraceAbstraction took 3140.55ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 48.6MB in the beginning and 84.3MB in the end (delta: -35.7MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. [2021-11-19 13:41:41,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 81.8MB. Free memory was 57.4MB in the beginning and 57.4MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1179.40ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 57.0MB in the beginning and 71.4MB in the end (delta: -14.4MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 160.15ms. Allocated memory is still 100.7MB. Free memory was 71.4MB in the beginning and 67.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.42ms. Allocated memory is still 100.7MB. Free memory was 67.2MB in the beginning and 63.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 912.49ms. Allocated memory is still 100.7MB. Free memory was 63.8MB in the beginning and 49.2MB in the end (delta: 14.6MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3140.55ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 48.6MB in the beginning and 84.3MB in the end (delta: -35.7MB). Peak memory consumption was 41.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: incompatible size de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: incompatible size: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.ArrayIndexBasedCostEstimation.analyzeCosts(ArrayIndexBasedCostEstimation.java:210) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-19 13:41:41,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_caf94d79-9aa4-4d57-9259-ae6ddd8b2e07/bin/utaipan-UbGMyvGFUs/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: incompatible size